Properties of the phonon gas in ultrathin membranes at low temperature

D. V. Anghel; J. P. Pekola; M. M. Leivo; J. K. Suoknuuti; Matti Manninen

doi:10.1103/PhysRevLett.81.2958

Properties of the phonon gas in ultrathin membranes at low temperature

D. V. Anghel^*, J. P. Pekola, M. M. Leivo, J. K. Suoknuuti, Matti Manninen

^*Corresponding author for this work

Not published at Aalto University

University of Jyväskylä

Research output: Contribution to journal › Article › Scientific › peer-review

41 Citations (Scopus)

Abstract

We analyze heat conduction by phonons in ultrathin membranes by constructing a new theoretical framework which implies a crossover from a bulk three-dimensional phonon distribution into a quasi-two-dimensional distribution when the temperature is lowered. We calculate the corresponding changes in the relevant thermodynamic quantities. At the end we make a comparison to experimental data.

Original language	English
Pages (from-to)	2958-2961
Number of pages	4
Journal	Physical Review Letters
Volume	81
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.81.2958
Publication status	Published - 5 Oct 1998
MoE publication type	A1 Journal article-refereed

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AU - Manninen, Matti

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Properties of the phonon gas in ultrathin membranes at low temperature

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